German historian Jürgen Matthäus has been investigating the killer for years – and is confident he has finally solved the mystery of the massacre which took place 84 years ago View 2 Images Boffins reckon they've traced the identity using AI (Image: Getty Images)

Boffins have traced the identity of a notorious Nazi murderer after 84 years with the help of Artificial Intelligence. German historian Jurgen Matthaus has been working for years to identify a cold blooded killer from a chilling photo taken in 1941. ‌

The infamous snap shows a Nazi soldier wearing specs about to shoot a Jewish man in the back of the head as he kneels in front of a pit full of corpses as a group of Nazi's stand and watch. The photo, taken in today's Ukraine , has left historians baffled for years as

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